The typical rate of extinction differs for different groups of organisms. Mammals, for instance, have an average species "lifespan" from origination to extinction of about 1 million years ...

The typical rate of extinction differs for different groups of organisms. Mammals, for instance, have an average species "lifespan" from origination to extinction of about 1 million years ...

Harvard biologist E. O. Wilson estimated that 30,000 species per year (or three species per hour) are being driven to extinction. Compare this to the natural background rate of one extinction per ...

The proportion of 216 bird species globally extinct or likely lost since 1500 that were endemic to a region, found solely on islands, and were either flightless or partially flightless ...

Our cities have expanded rapidly, with urban areas doubling since 1992. "Species are going extinct at a faster rate than we've seen for millions of years" - Laura Foster reports All this human ...